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International Journal of Morphology

On-line version ISSN 0717-9502


BUARQUE DE GUSMAO, Luiz Carlos et al. Brachial Plexus Relationships whith the Second Part of Axillary Artery. Int. J. Morphol. [online]. 2005, vol.23, n.2, pp.129-132. ISSN 0717-9502.

62 axillas, 32 on the right upper limb and 30 on the left one were analyzed aiming a more detailed study of the topographic relationship between the brachial plexus' (BP) cords and the second part of the axillary artery (Aa). Once the second part of the Aa was determined (retropectoral part of the axilla) the authors observed that some of the BP's cords lost their identity during the length of the above-mentioned part of the axilla, so, the analysis of these cords and their relationship with the Aa was effected on the beginning of the retropectoral region. It was verified that in 27,42% of the cases, PB's cords surrounded the 2nd part of the Aa positioned according to their names ­ lateral cord (LC), medial cord (MC) and posterior cord (PC) ­ being this the most mentioned disposition in literature. In 16,13% of the cases, it was observed that MC and PC were disposed posteriorly to the Aa, while LC was situated laterally to the artery. In 3,23 % of the cases, LC and MC were found anteriorly, and PC posteriorly to the Aa; in the same percentage of cases, all the cords were situated laterally to the Aa. Only in 1,62%, MC and PC were situated according to their names, and the LC was anterior to the Aa. The majority of cases in which the cords were present, they disposed themselves differently of what the analyzed literature shows

Keywords : Axilla; Axillary Artery; Brachial Plexus.

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